hachita



H,634,RM

June 28 1927.

M. S. HACHITA PULSATING JIG 3 Shasta-Sheet 1 l Filed Nov. l5. 1925 INVEN TOR.

A TTORNEYl June 2s. 1927.

' M. S. HACHITA PULSATING JIG Filed Nov. l5. 1923 3 Shasta-Sheet 2 IN VEN TOR.

A Y'TORNE Y/SJ June 28, ma www M. S. HACHITA PULSATING JIG Filed Nov;1.5, 192s v s sheets-sheet 3` INVENTOR. wh@

Y Ik

A TTORNEY1 Y Patented June 28, i927.

A 'il MAXIMILIAN S. HACHITA, OF WILKES-BARRE, PENNSYLVANIA.

PULSATING JIG.

Application filed November 15, 1923. Serial No. 674,904.

My invention relates to pulsating jigs which are adapted to be employedin the treatment of coal, ore and the like for the purpose of separatingthe same in accord- 5 ance with the specific gravities of the differentconstituents of the mass treated.

An apparatus embodying my invention is particularly well adapted for thetreatment of coal of the smaller' sizes, such as pea, buckwheat, riceand barley, for the purpose of eliminating therefrom refuse matter suchas slate, stone and the like intermiXed therewith and which is of higherspecific gravity than coal.

One method which is 4employed in the treatment of materials of thecharacter mentioned to effect separation of the portions of differentspecific gravities is to cause the same to move forward over the bottomof a.`

pan or receptacle and simultaneously to cause an intermittent or impulseiiow 'of water upifrardly through openings 1n the p said bottom; butsuch practice has not` proved satisfactory in all cases, particularly inthe case of small sizes of coal such as mentioned above, because of thelack of means for properly controlling the flow of the water through thesaid materials.

The principal object of the invention, therefore, is to provide meanswhereby different areas or portions of the material within a pan orreceptacle being treated mayr be subjected to the action of separatecolumns of water which are fiowing upwardly with different forces; thatis to say, with different speeds.

In the treatment of materials in the manner suggested by upwardlyflowing water, it is desirable that the water be supplied in more orless frequent successive impuises and also that ther quantity suppliedto different areas or regions may be dierent and varied in order thatthe proper suspension in the jigging medium (water) of the mae terialbeing treated may be properly controlled whereby stratification inaccordance with the specific gravities of the different portions of thesaid material may be effected. it is, therefore, an object of thepresent 1nvention to provide means whereby ciiferent portions or regionsof the material being treated may be subjected to forces within and bythe jigging medium in such manner to effect the desired stratificationand frfifi Other objects and advantages of the invention will be pointedout in the detailed description thereof which follows or will beapparent from such description.

in the accompanying drawings, forming a part of this specification, lhave illustrated certain forms of apparatus embodying my invention, butit will be understood that the invention is susceptible of embodiment inother forms of apparatus than those shown and that various changes maybe made in the details ofjconstruction without'departing from the scopeof the invention as defined in the claim.

In the drawings:

Fig. l is a longitudinal sectional view of an apparatus adapted for thetreatment of coal for the elimination of slate, stone, grit and the liketherefrom in which my invention has been embodied;

Fig. 2 is a top plan view thereof;

Fig. 3 is a transverse sectional view taken on the line 3-3 of Fig. l;

Fig. l is a vertical longitudinal sectional view of a slightly modifiedconstruction of apparat-us in which my invention is embodied;

Fig. 5 is a similar view showing another modified construction ofapparatus in which the said inventionv is embodied;

Fig. 6 is a view in longitudinal vertical section showing still anothermodified construction of embodying the invention; and

Fig. 7 is a vertical sectional view taken on the line 7-7 of Fig. 6.

Referring to the drawings: l designates a tank having an opening 2 inits bottom which is adapted to be opened and closed by a valve 3actuated by a lever 4 and connecting rod 5. In the several forms ofconstruction, endless carriers 7 are provided for conveying the coalfrom the apparatus after the same has been separated from the slate,stone or other material to be eliminated. The slate, stone and othermaterial of specific gravity higher than that of the coal, is conveyedfrom the apparatus by means of an endless conveyer 8. The endlessconveyers 7 and 8 for separately conveying the coal and slate from theapparatus are of known construction and operate in known manner.

Referring new to Figs. 1 to 3, inclusive, ofthe drawin'ffs "l2designates a screen con= .gisting in the et a lOO ' .ing valve 32.

inous plate which extends across a portion ol the tank 1. a considerabledistance above the bottom 13 thereof. rlfhe said plate 1Q is inclineddownwardly lrom the front to the rear and. in etl'ect, constitutes thebottom olf a pan or receptacle into which the material, such as coalwith its adniixture o'l slate, bone and the like, being` treated isdis-- charged Yfrom a chute 14 trom a source et supply (not shown). rThesaid material is discharged into what is in elilect a hopper 14' and viscaused to flow or move rearwardly underneath the gate 15 and over thescreen bottom 12.

The grate 15 may be adjusted by turning the crank handle 16 and the nutto which it is attached in known manner.

The rear edge or end portion of the plate 12 is supported upon anupright plate 17 or solid wall ol` other construction. The space betweenthe said wall 17 and the rieht hand wall ot' the tank 1 is divided bymeans ot vertically arranged partition plates or boards 18 into a seriesof compartments 19, 2O and 2l. The bottoms ot these conmartments areprovided with openings which are adapted to be opened and closed bymeans of valves 23, actuated by means of handles 24 and connecting rods25, or in any other preferred manner.

For the purpose of aiding and facilitating; the movement ot thematerial. such as coal with its admixture of stone slate and the like,being treated. means is provided for subjecting the portions thereofdirectly above the compartments 19, 20 and 21 to successive impulses atproper intervals of upwardly flowing water. The water is supplied to thesaid compartments through slots 27 in the lower sides of horizontallyyarranged pipes 2S, the inner ends ot which are closed as shown in Fig.3, while the outer ends thereot have connection with a manifold 8Ohaving connection with ay water supply pipe 31. The pressure otl thewater as it issues trom the pipe 31 is adapted to be controlled by meansof a pressure regulat- For the purpose oit causing the water to vl'lowupwardly from the compartn'ients 19, 20 and 21 through the screen 12 insuccessive impulses of greater or less ilreqnency, a rotatable plug`valve 40 is provided between the valve 32 and the manifold 30. The valve40 is provided with an openin;` 41 which extends therethrough and alsois provided with a stem or shaft 43 which has a wheel 44 thereon, overwhich a driving` belt 45 passes. The said belt is driven by means of awheel 46 upon the main driving shaft 47 of the apparatus which is drivenby .means of a driving wheel 48, the latter in turn being driven by abelt or band (not shown). For the purpose of holding the belt 45 tight,an idler wheel 50 is provided. By varying the sizes of the Wheels 44 andcompartments 19, 20 and f2.1 in successive is delivered impulses and inlike manner through the 'from the said compartments openings ot thescreen 1Q.

ln order that the `torce of the impulses with which the wat-er isdelivered trom the respective compartments 19. 2O and 21 may be variedand controlled as desired.y the pipes 2S which extend into saidcomiljiartments as heretofore described are each provided with pressureregulating valves 5l. lily regulatingr these valves. the pressure of thewater within the pipes 2S is cont-rolled, and by the regulation o1 suchpressure the amount et water delivered and the 'torce o'l the successiveimpulses oit its upward flow are varied and controlled.

In the actual operation ott the apparatus the amount oit water deliveredtrom the compartment 9.1 may be less than that required to be deliveredfrom the compartment :20; nor is it necessary that the water fromcoinpartment 21 shall be delivered intermittently. lt is only neces'arythat su'l'licient water he delivered to the hopper 14a or that somemeans be provided to cause rearward movenient of the material under thegate 15. The amount of water delivered from the compartment 2O must besuliicient and delivered at such rate as to cause suspension ot thematerial in the water above the screen. The different materials oi theinaes being treated being;` of dili'lerent sp-ecilic gravities theyrange themselves in stratilied positions at di'llerent heights above thescreen 12 and are carried rearwardly by the 'flow oli the water intoposition adjacent the vertically adjustable `nate or valve The coal isot less speeil'ic gravity than the relusc matte` and consequentlyvcollect-l in a stratum above the latter. VShe amount and the speed otthe tlow ot water from the compartment 19 are less than from compartmentZO so thatl the slate. stone and other refuse matter and the coal settledown upon the screen with the coal confltituting the top layer orstratum.

rllhe slate. stone and the like olE higher specitic gravity aredischarged underneath the vertically.adjustable grate or valve and passover the upper edge of the vertically adjustable plate Adjustment ot theplates and 56 i1 effected by means ot the crank actuated nuts 57. inknown manner. The coal or other material from which the slate, stone and'the like have been sepaltlD ' upper end oi" the said rod is connectedat.

' to a post ated being` oi lighter `sp-ecitic gravity constitutes thetopmost layer of the mass and is discharged over the upper edge ot thebreast plate 60' and tlows downwardly to the lower end of the endlessconveyer 7 and is conveyed thereby frein the apparatus. ri'fhe slateyThe discharge ol the refuse and the coal is causd by the upward flow ofthe water from the compartment 19. The amount of water delivered fromthis compartment should be sufficient to ettect discharge as stated butshould not be sutticient to elevate the slate and cause its dischargewith the coal.

Y Referring now to Fig. t of the drawings: l'twill be noted that tiiespace between the bottoni 18 ot' the tanl; and the screenv 12 of the recptacle for the material to be treated is divided into con'ipartments bymeans of the vertical partition plates 1821s in 1 to 3. rllhecompartment or chamber 6l is situated underneath 'a pivoted gate 62 ontowhich the slate, stone and the lile and the coal to be discharged aredeposited, the same having been previously stratitied in the mannerdescribed in connection with Figs. 1 to 3 vwith the coal constitutingthe upper or top stratum. rlhe gate 62 is hinged at 63 andV its rearswinging end portion is connected to the lower end of a connecting rod64. The

65 to a lever 6G pivoted intermediate its ends An adjustable weight 68upon the said 'lever tends to hold the gate 62 in closed. position withits rear upper edge "against the lower edge of a breast plate 70 thetank by the conveyer but in'operation the said gate does not restagainst the lower edge of the plate 70. The intermittent pulsating Howot the water upvardly trom the compartnient. 61 against the vslate,stone and the like and4 coal resting upon said gate etlects discharge ofthe slate, etc. and vthe coal and causes a vibratory or swingingmov-ement of said gate. The relue, consisting ot slate, stone and thelike. is discharged underneath the lower edge et' the breast plate 70and is delivered into the bottom ot the tank l and is conveyed therefromby the endless conveyer 8 1n known manner. The coal is discharged overthe top olf the plate 70 and is removed trom y ln order to permitvertical s ringing .movements of the gate G2, the upper edge or end ofthe outer wall T2 of the compartment (il terminates a distance below thelower edge ot the breast plate 7 0, leavingI a considerable gap betweenthe said upper edge of the wall 72 and the lower edge bf the plate 70.The said gate is provided with curved Hange 73 which constitutes a.closure for the said gap,'so as to prevent the outlew of anyconsiderable previous constructions.

portion ot' water from the compartn ent (il through the said gap. lt isnecessary that the water shall flow upwardly .through the perforationsin the gate 62 in order that the discharge ot the refuse and the coalmay be facilitated and properly effected.

rlhe bottoms oi the compartments between the bottoni 1 3 and the screenll2 and gate 62 are provided with openings 22 which are adapted to beopened and closed by slide valves 28 Vwhich may be operated in anysuitable and convenient'. manner, as by means such as isshown foroperating the corresponding valves in Figs. l to 3 of the drawings.Mater is supplied to the compartments intermediate the screen l2 and thebottom 13 Yiii-om the pipes 28 through slots 2i' in the bottoms thereof,as in Figs. l to The water is discharged from these slots intermittentlyin the same manner as described in connection with the constructiondisclosed in Figs. l to 3 of the drawings.

Referring now to the construction shown in Fig. 5 of the drawings, itwill be noted that the space intermediate the bottoni 13 and the screen12 is divided into compartments by means ol partition plates 18 and thatwater is supplied intermittentiy to the asid compartments from pipes 28through slots 27 in the bottoms thereof as in the These compartments areprovided with openings 22 which are controlled by valves 23 which may beoperated previously described.

The mass constituting a mixture oit coal, slate, stone and the like, orother material containing relatively heavy in'ijiiurities to beeliminated is delivered to the as in the construction shown in Figs. lto 9 ol the drawings and is subjected to the action or intermittentlyflowing water discharged upwardly through the screen l2 trom theconipartnients underneath the same. lthe coal being the lighter isultimately separaten in the manner as described in connection with l to5 Ytrom the. slate, stone or other relatively heavy material, andlinally constitutes the upper stratum ciI the whole mass. 'llhe heaviermaterial slides downwardly along the inclined portion 80 whichconstitutes an extension ot' the screen l2, underneath the inner orliront edge of the adjustVH able breast plate ittdjustment ot' the saidplate is ellected by means of an adjustable screw threaded rod 82 whichhasl connection as indicated at 83 with the 'forward swinging edge ofthe said breast plate. The coal, constituting the upper stratum ot themass, passes onto the said plate and thence to the conveyer 7 by meansot which it is conveyed 'from the apparatus. 'lhe slate, stone and thelike are discharged onto the bottom ot the tank l and are conveyedtheretromby means of the endless conv-eyer o.

lteiferring now to Figs. 6 and 7 or". the

llt)

drawings, it will be seen that the material to be treated by the jiggingmedium is delivered trom a chute 111: into the hopper 14? trom which itpar es underneath. the lower edge ot' a gate or valve 15 which isadapted to be adjusted by means ot a crank 1G and nut to .vhich it issecured. rl'he space under neath the screen bottom et the apparatus isdivided by means ol upright partition plates or walls 19 intocompartments 19, 20 and 2l. ll'rater is delivered into thesecompertinents through openings 27 in the lower sides ot horizontallyextending pipes 28 situated therein. elivery ot the water to these pipesand the control ot its delivery theretrom into the compartn'ients 19, 29and 21 are e'liected in the manne;` as described in connection with thepreceding ligures oli the drawings. As the mixture oit coal, slate,stone and the like moves rearwardly atter it has passed underneath thegate or valve l the upward flow ol the water 'trom the compartments 29and 2l etlects suspeiision thereot within the water above the screenbottom 12 so that stre-.titication takes place in accordance with thespecilic gravities olli the ditterent materials as has been previouslydescribed. The slate, stone, etc., and the coal Vlinally settle downupon the screen bottom in liront ot the gate or valve and breast plate(il). rllhe coal, as is usual, rests upon the slate, stone and the like.The slate and other reluse are discharged underneath the gate or valve55 while the coal, being the lighter and being deposited upon the top otthe bed ot slate, stone, etc., is discharged over the upper edee ot thebreast plate (i0.

ln order that the operator or person in charge ot' the apparatus mayobserve the interior olf the apparatus tor the purpose et ascertainingwhether or not proper separation ot the coal and the refuse matter isbeing eltccted l have provided openings which are closed by transparentmaterial, such as glass, as indicated at a. These openings are shownonly in Figs. 6 and 'l but olwiously they may be employed in the otherl'orms oit construction it desired. lr" by observation it is ascertainedthat proper separation not being elilected adjustment ott the valves tovary the tiow ot water through and trom the dlli'erent compartmentsunderneath the screen bottom 12 may be made.

The .screen bottom 12 extends rearwardly and slightly downward y, asindicated at 99, and terminates in a tlaage-like enlargement, indicatedat 9i, against the outer or rear stu-tace ot which a verticallyadjustable gate 92 is litted. rThe said gate is provided with a rod 92;)which extends upwardly and to the upper end ot' which a nut 9st hasscrew threaded connection. Adjustment ot' the rod vertically is etleetedby rotation of the said nut so as to vary the height ot the and trom thelatter upwardly through the .portion ot the screen bottom 12 which islocated thereover should be sutticient to etlect discharge o'f the coaland the retuse as heretofore indicated, but should not be sufficient tomove or throw the slate, stone and the like upwardly with sutlicientforce to cause an admiring ot the coal and retuse after the separationthe-reci as described.

It may happen that the reluse consisting ot slate, stone and the likemay pile up too high against the trent side ot the gate 55 and breastplate 69, with the result that it might happen that portions oir' theslate, etc. would be discharged with the coal over the upper edge ot thebreast plate GO. In order to prevent this occurrence l have providedmeans for facilitating and accelerating the discharge oi the slate tromunderneath the gate or valve 55 and over the edge ot the gate ot stopplate 92. To this end I have provided a valve plate 95 hinged to theupper edge et a rear wall 1T, Normally the said valve plate 95 is heldin vertical position, as indicated in tull lines in Fig. 6 ot thedrawings, with its upper edge portion resting against stops 96 securedupon the under side ot the screen bottom 12. The holding ot thel valveplate 95 in this position is eil'eeted by means et a. weight 98adjustably supported upon a lever arin 99, which arm is .situatedexteriorly of the tank 1 as shown and which is connected at its rear endto the said valve plate. ln case the refuse matter should pile up to toogreat an extent upon the 'front side or the gate 55 and breast plate G0,so that by reason ot its weight it would otl'er unusual and too greatresistance to the passage o'l water directly upwardly through the screenbottom 12, the reaction would etlect tilting or opening ot the valveplate 95 to vard the lett so as to provide a passageway tor the waterthrough the extended portion. 99 oi the screen bottom 12 to the lett otfthe gate 55. The passage ot the water upwardly through the portion etthe screen would ettect more rapid discharge oit the refuse over theupper edge ot the gate 92, with the re'- sult that more rapid deliveryet the refuse underneath the gate 55 would be brought about so that theheight or thickness ot' the bed et refuse material above the screenbottom 12 in front ot' the said gate 55 and breast plate 60 would bedecreased. Upon the decreasing of the thickness and the lll() weight ofthe bed o' refuse material above the portion of the screen bottom l2above the compartment 1.9, the water would again take its usual courseupwardly through the said screen bottom while the valve plate 95, underthe influence ot the weight'QS, would be closed or returned to theposition as shown inv Fig. Got the drawingsA rIhe said valve plate isindicated by dotted lines in an open position.

It will be seen that the construction as disclosed in Figs. G and Iprovides means whereby the height and the weight ot the bed of refusematerial (slate, stone and the like) above the screen bottom l2 in irontof the gate 55 and 'breast plate 60 are auto" matically controlled insuch manner as to insure that the .said refuse will not be dischargedover the upper edge oi the breast plate 60 and be delivered as animpurity with the coal previously separated therefrom.

It will be noted thatin theseveral forms off construction, the water isdischarged downwardly Jfrom the pipes which are located in thecompartments underneath the screen l2. It is preferable, though notessential to my invention, that the water be discharged downwardly insaid compart` ments so that the torce thereot may be spread oversubstantially the entire cross sectional area ot the respectivecompartments. By thus discharging the water the force ot the upward flowfrom any compartment is substantially uniform throughout the area of theportion of the screen bottom through which it passes. By causing thewater to be discharged `tromthe respective compartments withsubstantially uniform force at all points in the horizontal ortransverse area thereoic better and more etlicient y results areobtained in operation.

It will be seen that by my invention I have provided a unitary apparatushaving means whereby the water from one of the compartments under thebottom of the separating receptacle or chamber may be caused to flowupwardly with greater speed and force than is the case with the waterwhich is .discharged from another or any one of the other compartmentsof the apparatus. By thus controlling the speed and force of the waterwhich is admitted to different areas or portions of the saparationchamber, I am enabled to etl'ect a much more com- .'13 plete andefficient separation of the slate, stone and the like, particularly inthe smaller sizes of coal, than is possible with the ordinaryconstruction in which the water is discharged into the said separationchamber with substantially the same 'torce at all points or" the bottomthereof.

. Having thus described my invention, what I claim and desire to secureby Letters Patent is:

In a coal jig, the combination of a chamber for receiving the coal withimpurities intermingled therewith tor washing and separating the same,the said chamber having a bottom provided with openings extendingtherethrough, a breast plate and adjustable gate at the rear end of saidchamber, the said bottom extending rearwardly and beyond the plane ot'the said breast plate and gate, a stop plate adjacent the rear edge otthe said bottom, a compartment situated underneath the said bottom, therear wall ot the said compartment being in substantially the same planeas that of the said breast plate and gate, the upper portion of saidwall comprising a gravity controlled gate which is adapted to openoutwardly upon pressure from within, and means for intermittently andcontrollablyy supplying water to the said compartment, the water fromthe compartment being adapted, in the event oit' the impurities and coalbanking too l high against the br-east plate and gate, to re-act againstthe said gravity controlled gate to open the same whereby water isadapted to iow upwardly through the portion oit' the said bottom beyondand rearwardly of the plane or" the said breast plate and gate,substantially as described.

In testimony that I claim the foregoing 25 as my invention, I havehereunto signed my name this 13th day of November, A. D., 1923.

MAXIMILIAN S. HACHITA.

